#4 ex.cpp for new tinfo system

[Vladimir V Kisil]

I am attaching a version of ex.cpp which works with the
new tinfo system in GiNaC.

[Vladimir V Kisil]

ex.cpp

[Jonathan Brandmeyer]

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Based on the change that appears to be coming, I am cooking
up a slightly different patch that will use std::map to
search in O(log(n)) vice O(n). What is the type of (for
example), a GiNaC::basic::tinfo_static in the new system?

Thanks,
-Jonathan

[Vladimir V Kisil]

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> I am cooking up a slightly different patch that will use
std::map to search in O(log(n)) vice O(n).
It will be indeed better!
> What is the type of (for example), a
iNaC::basic::tinfo_static in the new system?
I think it is 'tinfo_t* '